CN114263570A - Thin-wall segment of assembled UHPC fan tower, whole-ring UHPC cylinder segment and fan tower construction method - Google Patents
Thin-wall segment of assembled UHPC fan tower, whole-ring UHPC cylinder segment and fan tower construction method Download PDFInfo
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- CN114263570A CN114263570A CN202111411283.5A CN202111411283A CN114263570A CN 114263570 A CN114263570 A CN 114263570A CN 202111411283 A CN202111411283 A CN 202111411283A CN 114263570 A CN114263570 A CN 114263570A
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- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 75
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 10
- 238000011065 in-situ storage Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 2
- 239000003351 stiffener Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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Abstract
A thin-wall segment of an assembled UHPC fan tower comprises a prefabricated arc-shaped component, and a circumferential steel joint and a vertical steel joint which are arranged on the prefabricated arc-shaped component, wherein the circumferential steel joint is arranged on the inner sides of the upper end and the lower end of the prefabricated arc-shaped component and exceeds the end face by a distance, and the vertical steel joint is arranged on the inner sides of the left end and the right end of the prefabricated arc-shaped component and exceeds the end face by a distance; the whole ring UHPC cylinder segment is formed by splicing thin-wall segments in an annular mode, the parts, exceeding the end faces, of the annular steel joint and the vertical steel joint are set to be UHPC cast-in-place seams, reinforcing steel bars are arranged in the prefabricated arc-shaped components, and the reinforcing steel bars extending out of the adjacent prefabricated arc-shaped components are arranged in a staggered mode. The invention also discloses a construction method of the whole-ring UHPC cylinder segment and the fan tower. The invention is convenient for transportation and on-site hoisting, greatly reduces UHPC pouring and test piece maintenance, and effectively improves the construction efficiency; the structure is simple, the weight is high, the assembly rate is high, the durability is excellent, the transportation and on-site construction cost can be greatly reduced, and the economic benefit and the social benefit are very high.
Description
Technical Field
The invention relates to a fan tower, in particular to a thin-wall segment of an assembled UHPC fan tower, a whole-ring UHPC cylinder segment and a construction method of the fan tower.
Background
In order to utilize wind energy more efficiently, a large-capacity (more than or equal to 5 MW) wind driven generator becomes a global wind power market development trend, and the height of a tower is usually more than 80 m; compared with an onshore wind power plant, the offshore wind power plant has the advantages of high wind speed, stable wind power, wide space and the like, and has huge development potential when large-scale offshore ultra-large-capacity (more than or equal to 10 MW) fans and ultra-high fan towers (more than or equal to 100 m) are built.
The wind turbine tower is used as a main bearing structure of the wind turbine generator, bears combined actions of reciprocating wind load, dead weight, pressure and bending moment generated when a wind turbine hub operates and the like, is in a very complex stress state, and needs to be ensured to have enough strength, rigidity, stability, torsion resistance and fatigue resistance; at present, the wind turbine tower structures which are researched and applied more at home and abroad are thin-wall round steel cylinders and prestressed concrete round tower cylinders which are mainly connected into a whole through a plurality of prefabricated parts and prestressed tendons. With the continuous increase of the capacity of the fan and the height of the tower, the cross section, the wall thickness or the reinforcement ratio of the tower drum is increased to ensure the structural safety; however, the method is limited by material properties, manufacturing processes and transportation conditions, and if the existing materials and structural forms are used for the ultra-high draught fan tower, the disadvantages of difficult preparation of prefabricated parts, complicated field construction, long period, low durability and economy and the like can be caused; meanwhile, the offshore wind turbine tower is exposed in the marine environment for a long time, and the later maintenance cost is increased due to the corrosion prevention of the steel structure or the seepage prevention treatment of concrete. In addition, the corrosion of the connecting bolts and the prestressed tendons among the prefabricated parts also increases the later maintenance cost and reduces the service life of the tower.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a construction method of a thin-wall segment, an entire-ring UHPC cylinder segment and a fan tower of an assembled UHPC fan tower, which is convenient for transportation and on-site hoisting, greatly reduces on-site pouring and maintenance procedures, effectively improves construction efficiency and can greatly reduce transportation and on-site construction cost.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a thin wall segment of assembled UHPC fan pylon, includes prefabricated arc component to and locate hoop steel joint and the vertical steel joint on the prefabricated arc component, the hoop steel joint is located the inboard at prefabricated arc component's upper and lower both ends, and exceeds one section distance of terminal surface, the inboard at both ends about prefabricated arc component is located to vertical steel joint, and exceeds one section distance of terminal surface.
Furthermore, reinforcing steel bars are arranged in the prefabricated arc-shaped components and extend out of the peripheral end faces of the prefabricated arc-shaped components, and concave-convex alternate inverted wedge-shaped key teeth are uniformly arranged on the peripheral end faces of the prefabricated arc-shaped components.
Furthermore, the prefabricated arc-shaped component and the inverted wedge-shaped key teeth are made of UHPC materials, and fibers are doped in the UHPC materials.
Furthermore, the end surfaces of the periphery of the prefabricated arc-shaped component are rough, and part of fibers are exposed.
Furthermore, the volume mixing amount of the fiber is more than or equal to 2.0 percent, the axial tensile strength of the UHPC material is more than 8.0MPa, the axial tensile ultimate strain is more than 0.2 percent, and the compressive strength is more than 100 MPa.
Further, the radian of the prefabricated arc-shaped component is 120 degrees or 180 degrees, the height is 3.0-5.0 m, and the wall thickness is 0.1-0.3 m; the height of each inverted wedge-shaped key tooth is 0.05-0.2 m, the length of the upper bottom is 0.2-0.6 mm, the length of the lower bottom is 0.1-0.4 m, and the distance between every two adjacent inverted wedge-shaped key teeth is 0.6-1.8 m; the length of the reinforcing steel bar extending out of the peripheral end faces of the prefabricated arc-shaped component is 0.4-0.6 m.
Furthermore, trapezoidal steel stiffening ribs are uniformly distributed on the inner side of the annular steel joint; the outer surfaces of the annular steel joint and the vertical steel joint are uniformly provided with studs.
Furthermore, the diameter of the studs is 10-25 mm, the length of the studs after welding is 50-300 mm, the distance between the studs is 100-250 mm, the number of the rows of the studs at the joints of the annular steel joints and the vertical steel joints and the prefabricated arc-shaped component is more than or equal to 3, and the number of the rows of the studs extending out of the main body part of the prefabricated arc-shaped component is more than or equal to 2.
Further, the height that the hoop steel connects is 0.4 ~ 0.8m, the width that vertical steel connects is 0.3 ~ 0.6m, the height that hoop steel connects and vertical steel connects pre-buried in prefabricated arc component is 0.2 ~ 0.5m, and the height that stretches out prefabricated arc component is 0.2 ~ 0.3 m.
A whole-ring UHPC cylinder segment of an assembled UHPC fan tower frame is formed by annularly splicing the thin-wall segments, the parts, exceeding the end faces, of the annular steel joint and the vertical steel joint are set to be UHPC cast-in-place seams, reinforcing steel bars are arranged in the prefabricated arc-shaped components, and the reinforcing steel bars extending out of the adjacent prefabricated arc-shaped components are arranged in a staggered mode.
Further, bolt holes are uniformly distributed in the connection end faces of the annular steel joints and the vertical steel joints, bolt holes are bolted through bolts to form seam grooves of the UHPC cast-in-place seams, and the diameters of the bolt holes and the bolts are 25-100 mm.
A construction method of an assembled UHPC fan tower comprises the following steps:
s1: prefabricating thin-wall sections of the assembled UHPC fan tower frame, aligning bolt holes on vertical steel joint connecting surfaces of a plurality of matched thin-wall sections left and right, temporarily connecting by adopting high-strength bolts, forming vertical joints at the connecting positions, then coating a template, then casting UHPC in situ, maintaining, and then removing a mold to form a whole ring UHPC cylinder section;
s2: aligning bolt holes on the circumferential steel joint connecting surfaces of adjacent whole ring UHPC cylinder segments up and down, temporarily connecting by adopting high-strength bolts, forming a circumferential joint at the connecting position, then coating a template, then casting UHPC in situ, maintaining, and removing the mold after maintaining;
s3: and repeating S2 until all the whole-ring UHPC cylinder segments are connected up and down to form the UHPC fan tower body structure.
The invention has the beneficial effects that:
in the aspect of structural stress, the UHPC has ultrahigh compression resistance and excellent tensile and fatigue resistance, and can improve the overall strength, rigidity and fatigue resistance of the fan tower; in addition, the prefabricated components are fixedly connected through bolts and connected through cast-in-place UHPC, so that the strength of the joint (stronger than that of the prefabricated section) is enhanced, the local damage of the joint is avoided, the prefabricated components are stressed cooperatively, and the overall performance of the fan tower structure is further ensured;
in the aspect of structural durability, the UHPC has ultrahigh compactness, can effectively prevent water and chloride ions from permeating, and avoids corrosion and erosion of internal reinforcing steel bars and prestressed cables; meanwhile, UHPC is cast in situ at the joint, so that the interface performance is improved, the joint interface is prevented from cracking, and the internal steel joint is protected; meanwhile, the service life of the UHPC in the marine environment is far longer than that of common concrete and steel structures, so that the service life of the existing offshore wind turbine tower can be prolonged;
in the aspect of assembly, compared with a prestressed concrete fan tower, the tower structure disclosed by the invention can greatly reduce the size of the cross section, the wall thickness and the reinforcement ratio, not only is the preparation of the prefabricated section simplified, but also the self weight of the prefabricated section is reduced, and the transportation and the field hoisting are facilitated; in addition, the connection structure between the segments is simple in form, the steel joints can be used for temporarily connecting the multiple prefabricated segments during construction, and then UHPC joints are cast in situ together, so that UHPC pouring and test piece maintenance are greatly reduced, and the construction efficiency is effectively improved;
in the aspect of economy, the invention has simple structure, light weight, high strength and high assembly rate, and can greatly reduce the transportation and on-site construction cost; in addition, the invention avoids the problems of local cracking and water resistance of the fan tower in the service stage, effectively reduces the use cost of the fan tower and has high economic benefit and social benefit.
Drawings
FIG. 1 is a schematic structural view of a thin-walled segment of the present invention;
FIG. 2 is a schematic structural view of a prefabricated curved member of the present invention;
FIG. 3 is a schematic structural view of a circumferential steel joint of the present invention;
FIG. 4 is a schematic structural view of a vertical steel joint of the present invention;
FIG. 5 is a schematic structural view of the assembly of the thin-walled segments of the present invention.
In the drawings: 1. prefabricated arc-shaped component, 101, inverted wedge-shaped key teeth, 102, vertical reinforcing steel bars, 103, circumferential reinforcing steel bars, 2, circumferential steel joints, 201, trapezoidal steel stiffening ribs, 202, bolt holes, 203, studs, 3 and vertical steel joints.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention:
as shown in fig. 1-5, an embodiment of a thin-wall segment of an assembled UHPC fan tower comprises a prefabricated arc-shaped member 1, and a circumferential steel joint 2 and a vertical steel joint 3 which are arranged on the prefabricated arc-shaped member 1, wherein the circumferential end surface of the prefabricated arc-shaped member 1 is uniformly provided with inverted wedge-shaped key teeth 101 which are concave-convex alternately, the circumferential steel joint 2 is arranged on the inner side of the upper end and the lower end of the prefabricated arc-shaped member 1 and exceeds the end surface by a distance, and the vertical steel joint 3 is arranged on the inner side of the left end and the right end of the prefabricated arc-shaped member 1 and exceeds the end surface by a distance. The assembly can be completed in a short time through the prefabricated arc-shaped component 1, the distance exceeding the distance is reserved for cast-in-place after assembly, the working efficiency is improved, and the overall performance is improved.
Reinforcing steel bars are arranged in the prefabricated arc-shaped components 1 and extend out of the peripheral end faces of the prefabricated arc-shaped components 1, and the reinforcing steel bars extending out of the two connected prefabricated arc-shaped components 1 are arranged in a staggered mode. The integrity and firmness of the prefabricated arc-shaped component can be improved through the reinforcing steel bars. The reinforcing steel bars comprise vertical reinforcing steel bars 102 and hoop reinforcing steel bars 103, and the vertical reinforcing steel bars 102 and the hoop reinforcing steel bars 103 extend out of the end face length of the periphery of the prefabricated arc-shaped component 1 by 0.4-0.6 m.
The prefabricated arc-shaped component 1 and the inverted wedge-shaped key teeth 101 are both made of UHPC materials, fibers are doped in the UHPC materials, and the volume parameter of the fibers is more than or equal to 2.0 percent. The UHPC material has the axial tensile strength of more than 8.0MPa, the axial tensile ultimate strain of more than 0.2 percent and the compressive strength of more than 100 MPa. The strength and toughness of the prefabricated arc-shaped member 1 and the inverted wedge-shaped spline teeth 101 can be greatly enhanced by using the UHPC material doped with the fibers.
The peripheral end surfaces of the prefabricated arc-shaped component 1 are rough, and part of fibers are exposed. The rough end surface can ensure the tightness of the combination of the cast-in-place seam after assembly.
The radian of the prefabricated arc-shaped component 1 is 120 degrees or 180 degrees, the height is 3.0-5.0 m, and the wall thickness is 0.1-0.3 m; the height of the inverted wedge-shaped key teeth 101 is 0.05-0.2 m, the length of the upper bottom is 0.2-0.6 mm, the length of the lower bottom is 0.1-0.4 m, and the distance between every two adjacent inverted wedge-shaped key teeth 101 is 0.6-1.8 m.
Trapezoidal steel stiffening ribs 201 are uniformly distributed on the inner side of the annular steel joint 2; the outer surface that the hoop steel connects 2 and vertical steel to connect 3 all evenly arranges peg 203, and peg 203 diameter is 10 ~ 25mm, and postweld length is 50 ~ 300mm, and the interval is 100 ~ 250 mm. All evenly arrange bolt hole 202 on the hoop steel joint 2 and the vertical steel joint 3 connection terminal surface, bolt hole 202 and bolt diameter are 25 ~ 100 mm.
The height that the hoop steel connects 2 is 0.4 ~ 0.8m, and the width that vertical steel connects 3 is 0.3 ~ 0.6m, and the hoop steel connects 2 and vertical steel connect 3 pre-buried height in prefabricated arc component 1 is 0.2 ~ 0.5m, and the height that stretches out prefabricated arc component 1 is 0.2 ~ 0.3m, and steel sheet thickness is 10 ~ 50 mm.
The number of rows of the studs 203 at the joints of the annular steel joints 2 and the vertical steel joints 3 and the prefabricated arc-shaped component 1 is equal to or more than 3, and the number of rows of the studs 203 extending out of the main body part of the prefabricated arc-shaped component 1 is equal to or more than 2.
A construction method of an assembled UHPC fan tower comprises the following steps:
s1: prefabricating a thin-wall segment of the assembled UHPC fan tower; aligning bolt holes 202 on the connecting surfaces of vertical steel joints 3 of two or three matched prefabricated arc-shaped components 1 left and right, temporarily connecting by adopting high-strength bolts, forming vertical seams at the connecting positions, then coating a template, then casting UHPC in situ, maintaining, and removing a mold after maintaining to form a whole ring UHPC cylinder segment;
s2: aligning bolt holes 202 on the connection surface of the annular steel joint 2 of adjacent whole-ring UHPC cylinder segments up and down, temporarily connecting by adopting high-strength bolts, forming an annular seam at the connection position, then coating a template, then casting UHPC in situ, maintaining, and removing the mold after maintaining;
s3: and repeating S2 until all the whole-ring UHPC cylinder sections are connected, thereby forming the UHPC ultrahigh conical fan tower body structure.
Those not described in detail in the specification are well within the skill of the art.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as being within the protection scope of the present invention.
Claims (12)
1. The utility model provides a thin wall segment of assembled UHPC fan pylon which characterized in that, includes prefabricated arc component and locates hoop steel joint and the vertical steel joint on the prefabricated arc component, the hoop steel joint is located the inboard at prefabricated arc component's upper and lower both ends, and exceeds a section distance of terminal surface, the inboard at both ends about the prefabricated arc component is located to vertical steel joint, and exceeds a section distance of terminal surface.
2. The thin-walled segment of an assembled UHPC wind turbine tower according to claim 1, wherein reinforcing steel bars are arranged in the prefabricated arc-shaped member and extend out of the peripheral end face of the prefabricated arc-shaped member, and the peripheral end face of the prefabricated arc-shaped member is uniformly provided with concave-convex inverted wedge-shaped key teeth.
3. The thin-walled segment of an assembled UHPC wind turbine tower of claim 2, wherein the pre-fabricated arcuate members and the inverted wedge shaped spline teeth are both UHPC material with fibers incorporated therein.
4. The thin-walled segment of an assembled UHPC wind turbine tower of claim 3, wherein the pre-fabricated arcuate sections are rough on all sides and have some fiber exposed.
5. The thin-walled segment of the assembled UHPC wind turbine tower of claim 4, wherein the fiber volume doping is greater than or equal to 2.0%, the axial tensile strength of the UHPC material is greater than 8.0MPa, the axial tensile ultimate strain is greater than 0.2%, and the compressive strength is greater than 100 MPa.
6. The thin-walled segment of an assembled UHPC wind turbine tower according to claim 4, wherein the prefabricated arc members have a radian of 120 ° or 180 °, a height of 3.0-5.0 m and a wall thickness of 0.1-0.3 m; the height of each inverted wedge-shaped key tooth is 0.05-0.2 m, the length of the upper bottom is 0.2-0.6 mm, the length of the lower bottom is 0.1-0.4 m, and the distance between every two adjacent inverted wedge-shaped key teeth is 0.6-1.8 m; the length of the reinforcing steel bar extending out of the peripheral end faces of the prefabricated arc-shaped component is 0.4-0.6 m.
7. The thin-walled segment of an assembled UHPC wind turbine tower according to any of claims 1-6 wherein trapezoidal steel stiffeners are evenly arranged inside the circumferential steel joints; the outer surfaces of the annular steel joint and the vertical steel joint are uniformly provided with studs.
8. The thin-wall segment of the assembled UHPC fan tower frame as claimed in claim 7, wherein the diameter of the studs is 10-25 mm, the length after welding is 50-300 mm, the distance is 100-250 mm, the number of the rows of the studs at the joints of the circumferential steel joints and the vertical steel joints and the prefabricated arc-shaped component is more than or equal to 3, and the number of the rows of the studs extending out of the main body part of the prefabricated arc-shaped component is more than or equal to 2.
9. The thin-wall segment of the assembled UHPC fan tower frame as claimed in any one of claims 1-6, wherein the height of the circumferential steel joint is 0.4-0.8 m, the width of the vertical steel joint is 0.3-0.6 m, the height of the circumferential steel joint and the height of the vertical steel joint embedded in the prefabricated arc-shaped member are both 0.2-0.5 m, and the height of the circumferential steel joint and the height of the vertical steel joint extending out of the prefabricated arc-shaped member are both 0.2-0.3 m.
10. A whole-ring UHPC cylinder segment of an assembled UHPC fan tower frame, which is characterized in that the whole-ring UHPC cylinder segment is formed by annularly splicing the thin-wall segments of any one of claims 1 to 6, the parts of the annular steel joint and the vertical steel joint, which exceed the end faces, are set as UHPC cast-in-place seams, reinforcing steel bars are arranged in the prefabricated arc-shaped components, and the reinforcing steel bars extending out of the adjacent prefabricated arc-shaped components are arranged in a staggered manner.
11. The assembled UHPC fan tower whole-ring UHPC tube segment as claimed in claim 10, wherein bolt holes are uniformly distributed on the connection end faces of the annular steel joints and the vertical steel joints, the bolt holes are bolted through bolts to form seam grooves of the UHPC cast-in-place seams, and the diameters of the bolt holes and the bolts are 25-100 mm.
12. A construction method of an assembled UHPC fan tower is characterized by comprising the following steps:
s1: prefabricating thin-wall sections of the assembled UHPC fan tower frame according to any one of claims 1-6, aligning bolt holes on vertical steel joint connecting surfaces of a plurality of matched thin-wall sections left and right, adopting high-strength bolts for temporary connection, forming vertical joints at the connecting positions, then coating templates outside, then casting UHPC in situ and maintaining, and removing a mould after maintaining to form a whole ring UHPC cylinder section;
s2: aligning bolt holes on the circumferential steel joint connecting surfaces of adjacent whole ring UHPC cylinder segments up and down, temporarily connecting by adopting high-strength bolts, forming a circumferential joint at the connecting position, then coating a template, then casting UHPC in situ, maintaining, and removing the mold after maintaining;
s3: and repeating S2 until all the whole-ring UHPC cylinder segments are connected up and down to form the UHPC fan tower body structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111411283.5A CN114263570A (en) | 2021-11-25 | 2021-11-25 | Thin-wall segment of assembled UHPC fan tower, whole-ring UHPC cylinder segment and fan tower construction method |
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| CN202111411283.5A CN114263570A (en) | 2021-11-25 | 2021-11-25 | Thin-wall segment of assembled UHPC fan tower, whole-ring UHPC cylinder segment and fan tower construction method |
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| EP2764185A1 (en) * | 2011-08-26 | 2014-08-13 | Max Bögl Wind AG | Method for erecting a tower structure, and tower structure |
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| CN113027692A (en) * | 2021-03-10 | 2021-06-25 | 重庆大学 | Inner ring prestress assembled UHPC tower barrel section for wind power structure |
-
2021
- 2021-11-25 CN CN202111411283.5A patent/CN114263570A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2939817A1 (en) * | 2008-12-11 | 2010-06-18 | Adrien Sarnari | Prefabricated elementary block for constructing e.g. outer insulating wall of building, has connection elements connecting reinforcement structures to fix inner bearing wall and outer protective shell to maintain constant transversal gap |
| EP2764185A1 (en) * | 2011-08-26 | 2014-08-13 | Max Bögl Wind AG | Method for erecting a tower structure, and tower structure |
| CN106014872A (en) * | 2016-06-29 | 2016-10-12 | 三重型能源装备有限公司 | Steel-structure concrete tower drum connecting joint, fan tower drum and construction method |
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| CN113027692A (en) * | 2021-03-10 | 2021-06-25 | 重庆大学 | Inner ring prestress assembled UHPC tower barrel section for wind power structure |
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Application publication date: 20220401 |